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Acquired uterine arteriovenous malformation-Does it really exist? A case report
Josefina Larcombe1, Andrea Stuart1,2
1Department of Obstetrics and Gynaecology, Helsingborg Hospital, Helsingborg, Sweden.
Radiology Case Reports
|September 6, 2023
Summary
Acquired uterine arteriovenous malformations (AVM) may not be true AVMs but vascular malformations linked to abnormal invasive placental disorders. This finding reclassifies potential AVMs following pregnancy complications.
Area of Science:
- Gynecology
- Vascular Malformations
- Reproductive Medicine
Background:
- Acquired uterine arteriovenous malformations (AVM) are linked to pregnancy, abortion, or trauma, causing severe bleeding.
- Diagnosis is challenging due to nonspecific ultrasound findings and unclear pathophysiology.
- Previous reports suggest a connection between AVMs and placental invasive disorders.
Observation:
- A case of a woman with menorrhagia post-termination of pregnancy was diagnosed with uterine AVM via ultrasound.
- Emergency hysterectomy revealed a vascular malformation alongside placental increta remnant and placental site nodule.
Findings:
- The study hypothesizes that these vascular malformations, in the context of prior trophoblastic processes, are part of the abnormal invasive placental disorder spectrum.
- These findings suggest that such vascular malformations may mimic true AVMs but are distinct entities.
Implications:
- This challenges the current understanding and classification of acquired uterine AVMs.
- Reclassifying these vascular malformations could improve diagnostic accuracy and understanding of their incidence.
- Recognizing this link may refine management strategies for patients with postpartum or post-abortion bleeding and suspected AVMs.
